Comparison of production and milk quality traits of Lithuanian native ash-grey and white-backed cattle
2004
Urbsiene, D.; Lithuanian Veterinary Academy, Baisogala, Radviliskis distr. (Lithuania). Inst. of Animal Science
The study was carried out in the period from October 2002 to September 2003 with 15 indigenous ash-grey and white-backed cows kept in the conservation herd of the LVA Institute of Animal Science. The average daily milk yield (whole and 4% FCM) of white-backed cows (n=8) was, respectively, 1.7 and 3.1% lower than that of ash-grey cows (n=7). Correspondingly, the daily yield of fat and protein was 4.1 and 6.5% lower. The average content of dry matter in the milk of ash-grey cows was 0.26% higher than that in the milk of white-backed cows. The contents of protein, casein, total mineral matter, calcium and phosphorus were also higher than those in the milk of white-backed cows. The milk fat of ash-grey cows contained 0.46 and 0.79% more of, respectively, unsaturated and polyunsaturated fatty acids. There were no significant differences for the physicochemical and technological properties of milk of both ash-grey and white-backed cows and the milk met the requirements for the production of cheese, butter and other dairy products. The results from the study indicated that this study should be further continued to analyze the quantitative changes in production and the peculiarities of the nutritive, biological and technological value of milk from native while-backed and ash-grey cattle
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